You will find that a few streams and situations in the Yellowstone National Park may require some fly-fishing methods that are a quite different than those you may use at other locations. On the other hand, most of these methods are not very different from those used to fish the headwaters of many other Eastern or Western freestone streams. Contrary to that, most of the methods are very different from those used to fish tailwaters. There are no dams in Yellowstone National Park. Eastern anglers that are used to fishing spring creeks may find some similar type waters in Yellowstone but since the types of water vary greatly in Yellowstone, the methods used to fly fish these waters also varies greatly.

Caddisflies, especially the net spinners, exist in large quantities in Yellowstone. Other types such as cased caddis also exist in fairly large quantities. This is one place you definitely need to know how to fish caddis hatches.

Mayflies of the clinger nymph families are plentiful in Yellowstone.

Rainbow Troutusually require slightly different tactics than other species of trout.